1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Talja [164]
3 years ago
7

How many seconds will it take for the penny to hit the ground?

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

1 second

Step-by-step explanation:

-16t^2+16=0\\-16t^2=-16\\t^2=1\\t=1

You might be interested in
How to round 36,993 to the nearest thousand
Vitek1552 [10]
The answer is 37000 becuse 36.99=if rounded 37
4 0
3 years ago
What is the lateral surface area of a square pyramid with a side length 11.2 cm and a slant height 20 cm
madam [21]
Notice the picture below

the lateral area, or just the area of the sides, well, the sides are really just 4 triangles, so just get the area of each, and sum them up, that's the lateral area

3 0
3 years ago
Read 2 more answers
5. Write an equivalent ratio to 18:1?
Molodets [167]

Answer:

36:2

Step-by-step explanation:

we can just multiply both numbers by 2, to get 36:2

7 0
3 years ago
Read 2 more answers
1/27^-x=81^2x+2 find x​
Umnica [9.8K]

Answer:

Step-by-step explanation:

81

=

3

4

and

27

=

3

3

, so this equation can also be written as

3

4

x

=

3

3

(

x

+

2

)

=

3

3

x

+

6

.

Since the bases are now the same, we can equate exponents to get

4

x

=

3

x

+

6

so that

x

=

6

(technically this equating of exponents requires the fact that exponential functions (with base not equal to 1) are one-to-one functions).

(do u understand?)

7 0
3 years ago
The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the
kicyunya [14]

Answer:

it is b

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • For every problem-solving activity it's crucial that no less than five alternatives be considered.
    5·2 answers
  • I need all the answers please help me and show me step by step...please
    6·1 answer
  • Write the given second order equation as its equivalent system of first order equations. u″+5u′+4u=0 u″+5u′+4u=0 use vv to repre
    14·1 answer
  • What is the next number 3,6,4,8,6,12,10
    5·1 answer
  • Genevieve forgot the last two digits of her four-digit locker code: 21?? If the number is divisible hy 5,6, and 7, what is Genev
    13·1 answer
  • A 23 ft pixie stick is leaned up against a can of Monster. The bottom of the pixie stick makes a 31 degree angle with the ground
    12·1 answer
  • A new car is purchased for $ 41 , 000 $41,000 and over time its value depreciates by one half every 3 years. What is the value o
    7·1 answer
  • Tom and 29 friends (30 total) are to sit in three rows of 10 at a movie theatre. They madea rule that Within each row, they must
    5·1 answer
  • PLZ HELP NOW IM FAILING
    13·2 answers
  • How do you add 23+(2x)<br> ;()<br><br> freE PoInT
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!